Abstract: The invention is directed to a pesticide composition comprising free flowing, essentially spherical, water-dispersible granules wherein said water-dispersible granules are from about 150 to about 850 microns in diameter; wherein said granules contain up to about 8.0% by weight moisture; wherein each individual water-dispersible granule is an aggregation of individual spherical microcapsules which contain at least one water-insoluble pesticide within a polymeric shell wall; and wherein said water-dispersible granule disintegrates upon contact with water to release said individual microcapsules.The invention also relates to dry flowable pesticidal formulations of the above water-dispersible granules, together with formulation adjuvants.The invention is further directed to a process for preparing a water-dispersible granule by spary drying an aqueous suspension comprising discrete microcapsules containing at least one water-insoluble pesticide within a polymeric shell wall suspended in an aqueous liquid.

Abstract: The invention herein relates to dry flowable water-dispersible granular formulations and to a process for the preparation thereof.In particular, the water-dispersible granular formulations of this invention comprise a mixture of aggregates of microcapsules of water-insoluble pesticide, e.g., alachlor, or a plant growth regulant encapsulated within a polymeric shell wall and at least one other pesticide, e.g., atrazine or a salt of glyphosate, which is non-encapsulated.The water-dispersible granular formulations of the invention are prepared by mixing appropriate quantities of an aqueous dispersion of the encapsulated component, the non-encapsulated component and formulation adjuvants to form a slurry of the desired viscosity which can be directly extruded than dried or the slurry in more dilute, less viscous form may be spray dried, or agglomerated in fluid beds or rotating disc agglomerators.